#!/bin/sh
#
# ocf:pacemaker:pingd resource agent
#
# Copyright 2006-2019 the Pacemaker project contributors
#
# The version control history for this file may have further details.
#
# This source code is licensed under the GNU General Public License version 2
# (GPLv2) WITHOUT ANY WARRANTY.
#

#
# Records (in the CIB) the current number of ping nodes a cluster node can
# connect to.
#
#######################################################################
# Initialization:

: ${OCF_FUNCTIONS:="${OCF_ROOT}/resource.d/heartbeat/.ocf-shellfuncs"}
. "${OCF_FUNCTIONS}"
: ${__OCF_ACTION:="$1"}

: ${OCF_RESKEY_name:="pingd"}
: ${OCF_RESKEY_interval:="1"}
: ${OCF_RESKEY_CRM_meta_interval:=0}

ocf_log err "This agent (ocf:pacemaker:pingd) is deprecated, does not work, and"
ocf_log err "will be removed in a future release (use ocf:pacemaker:ping instead)"

case "$__OCF_ACTION" in
    start|monitor)
        # BUG: The sense of this test is reversed. Rather than fix it now, we
        # will formally deprecate the agent and remove it in a future release.
        if [ -n "$OCF_RESKEY_host_list" ]; then
            ocf_log err "Automatic conversion to ocf:pacemaker:ping failed: no hosts were configured to check for connectivity"
            exit $OCF_ERR_ARGS
        fi

        recurring=$(crm configure show "$OCF_RESOURCE_INSTANCE" | grep "op monitor.*interval=\"[1-9]" | sed s/.*interval=// | awk -F\" '{print $2}' | sed s/.*interval=// | awk -F\" '{print $2}' | sort | head -n 1)

        if [ -z "$recurring" ]; then
            ocf_log err "Automatic conversion to ocf:pacemaker:ping failed: no monitor operation configured"
            ocf_log err "Without an explicit monitor operation for '$OCF_RESOURCE_INSTANCE', connectivity changes will not be noticed"
            ocf_log err "Preventing startup to ensure the issue is addressed before it matters"
            exit $OCF_ERR_ARGS
        fi

        if [ $OCF_RESKEY_CRM_meta_interval -eq 0 ]; then
            if [ $recurring -ne $OCF_RESKEY_interval ]; then
                ocf_log warn "Your monitor operation happens every $recurring, which means that the $OCF_RESKEY_name attribute will be updated with a different frequency than the previously configured ( $OCF_RESKEY_interval )"
                ocf_log warn "Either change the monitor interval to match or, ideally, switch to the ocf:pacemaker:ping agent and avoid all this compatibility nonsense."
            fi
        fi
        ;;
    meta-data)
        cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="pingd" version="1.0">
<version>1.0</version>
<longdesc lang="en">
This agent (ocf:pacemaker:pingd) is deprecated and broken, and has been
replaced by the more reliable ocf:pacemaker:ping. It records (in the CIB)
the current number of ping nodes (specified in the 'host_list' parameter)
a cluster node can connect to.
</longdesc>
<shortdesc lang="en">pingd resource agent</shortdesc>

<parameters>

<parameter name="pidfile" unique="0">
<longdesc lang="en">PID file</longdesc>
<shortdesc lang="en">PID file</shortdesc>
<content type="string" default="${HA_VARRUN%%1}/pingd-${OCF_RESOURCE_INSTANCE}" />
</parameter>


<parameter name="user" unique="0">
<longdesc lang="en">
The user we want to run pingd as
</longdesc>
<shortdesc lang="en">The user we want to run pingd as</shortdesc>
<content type="string" default="root" />
</parameter>

<parameter name="dampen" unique="0">
<longdesc lang="en">
The time to wait (dampening) further changes occur
</longdesc>
<shortdesc lang="en">Dampening interval</shortdesc>
<content type="integer" default="5s"/>
</parameter>

<parameter name="set" unique="0">
<longdesc lang="en">
The name of the instance_attributes set to place the value in.  Rarely needs to be specified.
</longdesc>
<shortdesc lang="en">Set name</shortdesc>
<content type="string" default=""/>
</parameter>

<parameter name="name" unique="0">
<longdesc lang="en">
The name of the attributes to set.  This is the name to be used in the constraints.
</longdesc>
<shortdesc lang="en">Attribute name</shortdesc>
<content type="string" default="pingd"/>
</parameter>

<parameter name="section" unique="0">
<longdesc lang="en">
The section place the value in.  Rarely needs to be specified.
</longdesc>
<shortdesc lang="en">Section name</shortdesc>
<content type="string" default=""/>
</parameter>

<parameter name="multiplier" unique="0">
<longdesc lang="en">
The number by which to multiply the number of connected ping nodes by
</longdesc>
<shortdesc lang="en">Value multiplier</shortdesc>
<content type="integer" default=""/>
</parameter>

<parameter name="host_list" unique="0">
<longdesc lang="en">
The list of ping nodes to count.  Defaults to all configured ping nodes.  Rarely needs to be specified.
</longdesc>
<shortdesc lang="en">Host list</shortdesc>
<content type="string" default=""/>
</parameter>

<parameter name="interval" unique="0">
<longdesc lang="en">
How often, in seconds, to check for node liveliness
</longdesc>
<shortdesc lang="en">ping interval in seconds</shortdesc>
<content type="integer" default="1"/>
</parameter>

<parameter name="attempts" unique="0">
<longdesc lang="en">
Number of ping attempts, per host, before declaring it dead
</longdesc>
<shortdesc lang="en">no. of ping attempts</shortdesc>
<content type="integer" default="2"/>
</parameter>

<parameter name="timeout" unique="0">
<longdesc lang="en">
How long, in seconds, to wait before declaring a ping lost
</longdesc>
<shortdesc lang="en">ping timeout in seconds</shortdesc>
<content type="integer" default="2"/>
</parameter>

<parameter name="options" unique="0">
<longdesc lang="en">
A catch all for any other options that need to be passed to pingd.
</longdesc>
<shortdesc lang="en">Extra Options</shortdesc>
<content type="string" default=""/>
</parameter>

</parameters>

<actions>
<action name="start"   timeout="90s" />
<action name="stop"    timeout="100s" />
<action name="monitor" depth="0"  timeout="20s" interval="10s" start-delay="1m" />
<action name="meta-data"  timeout="5s" />
<action name="validate-all"  timeout="30s" />
</actions>
</resource-agent>
END
        exit $OCF_SUCCESS
        ;;
esac

"${OCF_ROOT}/resource.d/pacemaker/ping" "$1"
exit $?

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